KR102045273B1 - Heat pump - Google Patents

Abstract

The heat pump 2 is a motor 6 driven by an input electric power, a first compressor 8 that is mechanically connected to the motor 6, and compresses air, and a compression that is compressed by the first compressor 8. The 1st heat exchanger 14 which heat-exchanges with air and water, and the 1st hot water outlet 38 which takes out the water heated by heat-exchanging in the 1st heat exchanger 14 are provided. In this way, in the air refrigerant heat pump 2, by using a part of the CAES technology as the heat pump, it is possible to supply heat using only air and water.

Description

Heat pump

The present invention relates to a heat pump. More specifically, the present invention relates to a heat pump using air as a refrigerant.

Conventional heat pumps mainly use HFC (HydroFluoroCarbon) freon or CO ₂ as the refrigerant. Accordingly, when the refrigerant is leaked, the CO ₂ increase in the warming and air is concerned. Therefore, the air-conditioning system by the natural refrigerant which does not adversely affect the global environment is examined.

The coefficient of performance COP (Coefficient Of Performance) of the developed heat pump is compared with the heat supply conditions of 90 degreeC and 7 degreeC, and is the following grades.

Natural Refrigerant (CO ₂ ) Heat Pump: COP 3.0

Absorption Heat Pumps: COP 1.5

Adsorption Heat Pumps: COP 0.6 to 0.7

Alternative Freon Heat Pump: COP 4.5

Air refrigerant freezer: COP 0.44

For air that is the ultimate natural refrigerant, there is an air refrigerant refrigerator. However, since the use of the air refrigerant refrigerator is limited to freezing in an ultra low temperature region and the like, and the COP is about 0.44, it is not advantageous in terms of performance.

In addition, a technique known as compressed air storage (CAES) is known as a technique of using air as a working fluid and smoothing irregular fluctuating unstable power output such as renewable energy. The CAES generator of patent document 1 accumulates the compressed air discharged from a compressor when a surplus generation electric power generate | occur | produces, and converts it into electricity in an air turbine generator etc. as needed.

Japanese Patent Publication No. 2013-512410

The CAES power generation device of Patent Literature 1 aims to smooth out unstable power generation output that fluctuates irregularly, such as renewable energy, and is not particularly suggested for use as a heat pump using air as a refrigerant.

An object of this invention is to provide the air refrigerant heat pump which can supply heat using only air and water by using a part of CAES technology as a heat pump. Moreover, it is a subject to provide the air refrigerant heat pump which improved the efficiency conventionally.

The present invention relates to an electric motor driven by an input electric power, a first compressor mechanically connected to the electric motor, to compress air, a first heat exchanger to exchange heat with compressed air and water compressed by the first compressor, and the first compressor. A heat pump having a first hot water outlet for taking out water heated by heat exchange in a first heat exchanger is provided.

The hot water can be taken out from the first hot water outlet by raising the air temperature by the heat of compression of the first compressor, heat-exchanging the air with the temperature rise in the first heat exchanger, and raising the temperature of the water to create hot water. In addition, since the working fluid is air and water, it is harmless to leak in the air.

An inflator driven by compressed air compressed by the first compressor, a load generator mechanically connected to the inflator, a second heat exchanger for exchanging heat with air and water expanded in the inflator, and a heat exchanger in the second heat exchanger It is preferable to further provide a cold water outlet for taking out the temperature of the water. More preferably, the air expanded in the expander and supplied to the second heat exchanger is -50 ° C to -110 ° C.

The air is lowered by the endotherm during expansion in the expander, preferably lowered to −50 ° C. to −110 ° C., heat exchanged with the lowered air and water in a second heat exchanger, and the water is cooled to cool the water outlet. It can be taken out as cold water. Moreover, since not only hot water but also cold water can be taken out, COP can be increased and a performance can be improved.

And a first accumulator for storing compressed air compressed by the first compressor, wherein the expander is driven by compressed air supplied from the first accumulator, the load generator is a generator, and the generator is the It is desirable to be driven by an inflator to generate power.

By accumulating energy as compressed air by the first accumulator, and supplying compressed air to the expander when necessary to drive the generator to generate power, not only cooling and heating but also smoothing of electric power is possible at the same time.

A second accumulator fluidly connected to at least one of the expander and the first accumulator, and a second compressed air supplied at a higher pressure than compressed air compressed by the first compressor and supplied to the second accumulator; It is preferable to further provide a compressor.

By providing the second accumulator and the second compressor, emergency power and cold water can be supplied for a long time in an emergency such as a power failure of a commercial power system. This is particularly effective for a demand value in which emergency power is required and a large amount of cold heat is required even in a power failure of a data center or a large computer.

It is preferable to further provide a switching mechanism for switching the supply source of electric power generated by the generator to the electric motor or the demand destination.

By providing a switching mechanism, the power supply source can be switched as needed. Specifically, in normal times, the generator power is supplied to the demand source, and when there is no demand for power from the demand source, power is supplied to the electric motor to drive the first compressor, thereby effectively utilizing the generator power generated. In particular, when there is no demand for power from the demand source, power is circulated in the system, so that the required power supply from outside the system can be reduced, thereby increasing the coefficient of performance COP (Coefficient Of Performance), thereby improving performance. You can.

It is preferable that the load generating unit is the electric motor.

By integrating the electric motor and the load generating unit, the components of the apparatus can be reduced and the apparatus can be miniaturized. In particular, when the load generator is a generator, the first compressor and the expander may be mechanically connected by using a motor generator.

It is preferable to have the heat recovery mechanism which collect | recovers the heat which arises from the said electric motor and the said load generation part, heats up water by the collect | recovered heat, and takes out as hot water from a 2nd hot water outlet.

The heat generated by the electric loss or mechanism loss caused by the electric motor or the like can be recovered and used to make hot water.

According to the present invention, in the air refrigerant heat pump, by using a part of the CAES technology as the heat pump, it is possible to supply heat using only air and water. Moreover, efficiency can be improved conventionally.

1 is a schematic configuration diagram of a heat pump according to a first embodiment of the present invention.
FIG. 2A is a bar graph showing a breakdown of COP during heating and cooling operation of the heat pump of FIG. 1. FIG.
FIG. 2B is a bar graph showing the details of COP during the heating and cooling only operation of the heat pump of FIG. 1.
3 is a schematic configuration diagram of a heat pump according to a second embodiment of the present invention.
4 is a schematic configuration diagram of a heat pump according to a third embodiment of the present invention.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described with reference to an accompanying drawing.

(1st embodiment)

1 shows a schematic configuration diagram of a heat pump 2 according to a first embodiment of the present invention. The heat pump 2 of this embodiment receives an input electric power from the generator 4, and produces | generates two types of hot water (hot water A, B), cold water, and cold air as a refrigerant, and uses it for heating and cooling. Since the working fluid is air and water, it is harmless to leak in the air.

In this embodiment, in consideration of environmental properties, a generator using renewable energy such as wind power generation or solar power generation is used as the power generation device 4, but the type of the power generation device 4 is not particularly limited. In general, the power generation device 4 may be a power system or the like connected to a commercial power source.

The heat pump 2 of the present embodiment includes a motor (motor) 6, a first compressor 8, an expander 10, a generator (load generator) 12, a first heat exchanger 14, and a second The heat exchanger 18 is provided, and these are fluidly connected by the air piping 20a-20c and the water supply piping 22a-22g.

First, the path of the air pipes 20a to 20c will be described.

Electric power generated by the generator 4 is supplied to the motor 6. Thereafter, the power supplied from the generator 4 to the motor 6 is referred to as input power. The motor 6 is driven by input power.

The first compressor 8 is mechanically connected to the motor 6 and is driven by the motor 6. The discharge port 8b of the first compressor 8 is fluidly connected to the air supply port 10a of the expander 10 through the air pipe 20b. When the first compressor 8 is driven by the motor 6, the air is sucked in from the intake port 8a, compressed and discharged from the discharge port 8b, and the compressed air to the expander 10 through the air pipe 20b. To be transported. The first heat exchanger 14 is provided in the air pipe 20b.

In the first heat exchanger (14), the compressed air in the air pipe (20b) extending from the first compressor (8) to the expander (10) and extending from the water supply unit (28) described later to the first hot water outlet (38). Heat is exchanged with water in the water supply pipe 22b, and the water in the water supply pipe 22b is heated by the compressed heat generated by the first compressor 8. That is, in the 1st heat exchanger 14, the temperature of compressed air falls and the temperature of water rises. In the 1st heat exchanger 14, it can adjust to predetermined temperature, respectively, by adjusting the heat exchange amount, In this embodiment, water is heated up above normal temperature, and compressed air is cooled down below normal temperature. Here, the normal temperature of water is the temperature of industrial water, the temperature of the water after heat-exchanging with air | atmosphere using a cooling tower, etc., and it changes generally with a region and a season in 5-30 degreeC. In addition, the normal temperature of air is the temperature of air | atmosphere, and it changes generally with an area and a season in the range of 0-40 degreeC.

The inflator 10 is mechanically connected to the generator 12. The inflator 10 supplied with compressed air from the air supply port 10a is operated by the compressed air supplied with air, and drives the generator 12. The generator 12 is electrically connected to the power system 16 and the motor 6 via a switch 24 (see dashed line in FIG. 1). Therefore, the electric power generated by the generator 12 (hereinafter referred to as generated electric power) is supplied to the electric power system 16 or the motor 6. The supply source of generated electric power can be changed by switching the switch (switching mechanism) 24. Switching of the switch 24 may be switched in accordance with demand power required from the power system 16. Specifically, when electric power transmission from the generator 12 to the power system 16 is unnecessary, the heating and cooling dedicated operation is performed, and the switch 24 is switched to generate the generated power of the generator 12 to supply the motor of the first compressor 8. It supplies to (6). When electric power transmission is necessary from the generator 12 to the electric power system 16, it switches to the heating and cooling power generation operation, switches the switch 24, and supplies the generated electric power of the electric generator 12 to the electric power system 16. FIG. In particular, when there is no demand for electric power from the demand source, and power transmission is unnecessary from the generator 12 to the electric power system 16, in order to drive the motor 6 because electric power is circulated and used in a system for exclusively heating and cooling. It is possible to reduce the power supply from outside the required system, thus increasing the coefficient of performance COP (Coefficient Of Performance), thereby improving the performance.

The air expanded in the expander 10 is cooled by the endotherm at the time of expansion, and is sent out from the exhaust port 10b into the air pipe 20c. Since the compressed air supplied to the air supply port 10a of the expander 10 is lowered to room temperature or lower by the first heat exchanger 14, the air pipe is reliably cooled by the expander 10 to be cold air below room temperature. It is sent out in 20c. The second heat exchanger 18 is provided in the air pipe 20c. The cold air cooled to below room temperature is supplied to the second heat exchanger 18 through the air pipe 20c.

In the 2nd heat exchanger 18, the air below normal temperature in the air piping 20c extended from the expander 10 to the cold air outlet 26, and the water supply extended from the fractionation part 36 mentioned later to the cold water outlet 30 are mentioned. It heat-exchanges with the water in the piping 22c, and makes water fall below normal temperature. That is, in the 2nd heat exchanger 18, the temperature of air rises and the temperature of water falls. In the second heat exchanger 18, however, by adjusting the heat exchange amount, the air is heated but kept at or below room temperature. After the heat exchange in the second heat exchanger 18, air maintained at room temperature or lower, that is, cold air, is supplied to the cold air outlet 26 through the air pipe 20c, and is blown out of the heat pump from the cold air outlet 26. It is used for cooling. The demand for cooling includes, for example, a data center where enormous cooling is required for cooling a computer, a precision machine shop, a semiconductor factory, and the like, which require adjustment at a constant temperature due to restrictions in the manufacturing process.

Next, the path | route of the water supply piping 22a-22g is demonstrated.

Water supplied from the water supply part 28 is pressurized by the pump 32a and flows in the water supply pipe 22a. The cooling tower 34 is provided in the water supply pipe 22a, and the water in the water supply pipe 22a is cooled to a predetermined temperature by the cooling tower 34. Cooling temperature may be about room temperature, for example, and may be determined based on the heat exchange amount in each heat exchanger 14,18,40,42. The water supply pipe 22a is divided into the water supply pipes 22b to 22e at the fractionation section 36 downstream of the cooling tower 34.

One end of the water supply pipe 22b is connected to the dividing section 36 and the other end of the water supply pipe 22b. In the 1st heat exchanger 14 provided in the water supply pipe 22b, the water heated up more than normal temperature is taken out from the 1st hot water outlet 38 as hot water A to the outside of a heat pump, and is used for heating.

One end of the water supply pipe 22c is connected to the splitter 36 and the other end to the cold water outlet 30. In the second heat exchanger 18 provided in the water supply pipe 22c, the water lowered to room temperature or less is taken out from the cold water outlet 30 as cold water to the outside of the heat pump and used for cooling. Thus, since not only hot water but also cold water can be taken out, performance coefficient COP can be increased and a performance can be improved.

One end of the water supply pipe 22d is connected to the splitter 36 and the other end to the second hot water outlet 44. One end of the water supply pipe 22e joins the flow dividing unit 36 and the other end of the water supply pipe 22d downstream of the third heat exchanger 40. The third heat exchanger 40 and the fourth heat exchanger 42 are respectively provided in the water supply pipe 22d and the water supply pipe 22e to heat up the water in the interior.

In the present embodiment, the third heat exchanger 40 and the fourth heat exchanger are used to recover heat that is small compared to compressed heat such as electric loss or mechanical loss caused by the motor 6 and the generator 12, but also to recover hot water. The machine 42 is provided. Electrical losses include inverter losses and converter losses not shown due to the motor 6 and the generator 12. In the third heat exchanger 40 and the fourth heat exchanger 42, water in the water supply pipe 22d and the water supply pipe 22e, and the motor 6 and the generator 12 are transferred to the heat recovery pumps 32b and 32c. It heat-exchanges with heat mediums, such as lubricating oil, in the heat medium piping 21a, 21b which circulates by this. That is, in the 3rd heat exchanger 40 and the 4th heat exchanger 42, the temperature of water rises and the temperature of a heat medium falls. The water heated up to a predetermined temperature is taken out from the second hot water outlet 44 as the hot water B to the outside of the heat pump. Therefore, the heat medium pipes 21a and 21b, the third heat exchanger 40 and the fourth heat exchanger 42 are included in the heat recovery mechanism 46 of the present invention. Since hot water B taken out from the second hot water outlet 44 is usually lower in temperature than hot water A taken out from the first hot water outlet 38, it is used for heating in a hot bath facility, a hot water pool, an agricultural facility, and the like that can be used at a relatively low temperature. I think that.

Cold water and hot water A and B used for cooling and heating are recovered from the drain 48 through the water supply pipes 22f and 22g. The drain 48 and the water supply 28 are connected by piping (not shown), and the water recovered from the drain 48 is cooled again by the cooling tower 34 from the water supply 28 through the water supply pipe 22a. Are supplied to the individual heat exchangers 14, 18, 40, 42. In other words, the water used in the present embodiment is circulated in the water supply pipes 22a to 22g.

Preferably, the first heat exchanger 14 and the second heat exchanger 18 preferably use a plate heat exchanger capable of a large amount of heat exchange to obtain hot water A, B, cold water and cold air at a desired temperature.

In addition, the kind of the 1st compressor 8 and the expander 10 of this embodiment is not limited, A screw type, a scroll type, a turbo type, and a recipe type | mold may be sufficient. However, for the input power that is irregularly changed such as renewable energy so as to correspond to the power generation device 4 of the present embodiment, the screw type is preferable because it follows the linear with high responsiveness. In addition, although the number of the 1st compressor 8 and the expander 10 of this embodiment is all one, the number is not specifically limited, You may provide two or more in parallel.

The performance of the heat pump 2 is demonstrated.

There is a grade factor COP as a coefficient for evaluating the performance of a cooling and heating system such as the heat pump 2. COP is obtained by dividing the power supply Li to the system by the amount of heat generated LQ (COP = LQ / Li). In the present embodiment, the switch 24 can switch between the heating and cooling generation combined operation and the heating and cooling only operation. Therefore, the two operating modes will be described below by illustrating the individual recovered calories of the power supply Li and the generated heat transfer amount LQ to the system. However, the numerical values illustrated are not particularly intended to limit the scope of the present invention.

FIG. 2A is a bar graph showing the breakdown of the COP in the case of the cooling / heating combined use operation of the present embodiment, and FIG. 2B.

First, with reference to Figure 2a will be described the case of combined operation of heating and cooling power generation.

The power supply Li to the system is generated by the power generation device 4, and supplied as power of about 90 kW from the power generation device 4 to drive the motor 6.

The generated heat transfer amount LQ is expressed by adding the amount of power Lg generated by the generator 12 and supplied to the electric power system 16 to the sum of the heat amounts of hot water A, hot water B, cold water and cold air taken out.

The hot water A taken out from the first hot water outlet 38 is hot water heated by the first heat exchanger 14 using the heat of compression in the first compressor 8. In this embodiment, hot water A of about 90 ° C. can be recovered, for example, and the amount of heat recovered is about 65 kPa. The recovery temperature of the hot water A may be determined by adjusting the specifications of the first heat exchanger 14 such that the discharge air temperature of the first compressor 8 is about -10 ° C to 60 ° C.

The hot water B taken out from the second hot water outlet 44 uses the heat generated by the electric loss or the mechanical loss in the motor 6 and the generator 12 to utilize the third heat exchanger 40 and the fourth heat exchanger. It is hot water heated at 42. In this embodiment, hot water B of about 70 ° C. can be recovered, for example, and the amount of heat recovered is about 15 kPa.

The cold air taken out from the cold air outlet 26 is cold air cooled by the endotherm at the time of expansion in the expander 10. In the present embodiment, for example, cold air discharged from the exhaust port 10b of the expander 10 is about -50 ° C to -110 ° C, and is heated in the second heat exchanger 18 therefrom and finally 10 ° C to 17 ° C. The cold air of about degreeC can be collect | recovered, and a recovery heat amount is about 7 kPa.

Cold water taken out from the cold water outlet 30 is cold water cooled by the second heat exchanger 18 by cold air sent out from the expander 10. In the present embodiment, for example, cold water at about 7 ° C. can be recovered, and the amount of recovered heat is about 40 kPa.

The amount of power Lg generated by the generator 12 and supplied to the electric power system 16 is about 40 kw.

Since the total amount of heat generated LQ is the sum of these, LQ = 167 (= 15 + 65 + 40 + 7 + 40) kW.

Therefore, the coefficient of performance of the heat pump 2 at the time of combined-use heating and cooling power generation in this embodiment becomes COP = 1.86 (= 167 kW / 90 kW).

Next, with reference to FIG. 2B, the case of only a heating / cooling operation is demonstrated.

The power supply Li to the system is generated by the power generation device 4 using renewable energy such as wind power generation and solar power generation, and is supplied as electric power of about 50 kW to drive the motor 6. In order to drive the motor 6, about 90 kW of electric power is required. However, in the case of a dedicated heating and cooling operation, the remaining power of about 40 kW is circulated and supplied from the generator 12 in the system. Therefore, the power supply Li to the system is about 50 kW.

The amount of heat generated LQ does not change as the amount of heat taken out separately (hot water A, B, cold water and cold air) from the case of the combined operation of heating and cooling power generation, but the amount of electricity Lg generated by the generator 12 and supplied to the power system 16 exists. 0㎾ is not used. Therefore, since the generated heat quantity LQ is the sum of these, LQ = 127 (= 15 + 65 + 40 + 7 + 0) kW.

Therefore, the coefficient of performance of the heat pump 2 at the time of an exclusive operation for cooling and heating in this embodiment becomes COP = 2.54 (= 127 kW / 50 kW), and the performance improves significantly from the heat pump of the air refrigerant until now, Exceeds COP = 2.0, which was difficult until.

(2nd embodiment)

3 shows a schematic configuration diagram of the heat pump 2 of the second embodiment. The heat pump 2 of the present embodiment is substantially the same as the configuration of the first embodiment of FIG. 1 except that the motor generator 50 in which the motor and the generator are integrated is used. Therefore, the description about the same part as the structure shown in FIG. 1 is abbreviate | omitted.

In the present embodiment, the first compressor 8 and the expander 10 are mechanically connected coaxially via the motor generator 50 in which the motor and the generator are integrated. By connecting the first compressor 8 and the expander 10 using the motor generator 50, the atmospheric expansion torque of the compressed air can be used as an aid of the air compression torque, and the input power to the motor generator 50 is reduced. You can. Since the generator 12 (refer FIG. 1) is substantially abbreviate | omitted from 1st Embodiment, the heat recovery mechanism 46 is simplified, and the heat medium piping 21b (refer FIG. 1) and the pump 32c from 1st Embodiment. And the fourth heat exchanger 42 (see FIG. 1) are omitted. As a result, the system cost can be reduced, and electrical losses and mechanism losses in the generator, as well as inverter losses and converter losses for the generator can be reduced.

(Third embodiment)

4 shows a schematic configuration diagram of the heat pump 2 of the third embodiment. The heat pump 2 of this embodiment is the compressed air storage (CAES) generator 2. Specifically, in addition to the configuration of the heat pump 2 of the first embodiment shown in FIG. 1, the CAES power generator 2 includes a first accumulator tank (first accumulator) 52 and a second accumulator tank ( Second accumulator 54). Since the CAES power generation device 2 can store energy in the form of compressed air and can be converted into electric power as needed, power generation like the power generation device 4 using renewable energy such as wind power generation and solar power generation, etc. This can smooth the unstable power generation in which the power fluctuates irregularly. In this embodiment, since the structure common to 1st embodiment has many parts, description is abbreviate | omitted about the part same as the structure shown in FIG.

The CAES power generation device 2 of the present embodiment includes a first pressure storage tank that stores compressed air discharged from the first compressor 8 in an air pipe 20b extending from the first compressor 8 to the expander 10 ( 52) is installed. That is, the first accumulator tank 52 can store energy in the form of compressed air. The compressed air accumulated in the first pressure storage tank 52 is supplied to the expander 10 through the air pipe 20c. The valve 56 is provided in the air pipe 20c, and the opening and closing of the valve 56 can allow or block the supply of compressed air to the expander 10. The first accumulator tank 52 stores energy as compressed air, supplies compressed air to the expander 10 as needed, drives the generator 12 to generate electricity, and thereby generates power of the generator 4 by renewable energy. The power generation output can be smoothed.

In addition, the CAES power generation device 2 of the present embodiment has an allowable shaft having a higher pressure than the allowable accumulator value of the second compressor 58 and the first accumulator tank 52 which compress air at a higher pressure than the first compressor 8. A second pressure storage tank 54 having a pressure value is provided. Here, the allowable accumulator value means the maximum working pressure which is not linked to failure or breakdown of the accumulator tank.

Like the first compressor 8, the motor 7 is mechanically connected to the second compressor 58. The second compressor 58 is driven by the motor 7, intakes from the intake port 58a, compresses air at a higher pressure than the first compressor 8, and discharges it from the discharge port 58b to the second storage tank 54. Supply compressed air. Therefore, the pressure in the 2nd pressure storage tank 54 is usually higher than the pressure in the 1st pressure storage tank 52. As an example of the pressure (pressure value) of the 1st storage tank and the 2nd storage tank 54, it is thought that the 1st storage tank 52 shall be less than 0.98 Mpa, and the 2nd storage tank 54 shall be about 4.5 MPa. do.

The second pressure storage tank 54 is fluidly connected to the first pressure storage tank 52 and the expander 10 through an air pipe 20d. Specifically, one end of the air pipe 20d is fluidly connected to the second pressure storage tank 54, and the other end is fluidly connected to the air pipe 20c. 20 d of air pipings are provided with the flow regulating valve 60, and by adjusting the opening degree of the flow regulating valve 60, the flow volume of the air supplied to the 1st pressure storage tank 52 and the expander 10 can be adjusted. have. By supplying the high pressure air reduced in pressure to the expander 10, the generator 12 is driven to generate power, and the amount of compressed air stored in the first pressure storage tank 52 reduced by supplying the high pressure air reduced in pressure to the first pressure storage tank 52. You can supplement.

By providing the second pressure storage tank 54 and the second compressor 58, emergency power and cooling can be supplied for a long time in an emergency such as a power failure. Specifically, the flow regulating valve 60 is normally closed, and the internal pressure of the second pressure storage tank 54 is maintained high. When a large amount of power generation is required due to a power failure or the like, or when the internal pressure of the first accumulator tank 52 decreases due to power generation for a long time, the flow regulating valve 60 is opened to expand the expander 10 from the second accumulator tank 54. Supply a lot of compressed air. Thereby, the fall of the generation amount of the generator 12 driven by the expander 10 can be prevented, and cold air and cold water can also be taken out at the same time. This is particularly effective for demands that require large amounts of cold heat, such as data centers and large computers.

2: heat pump (compressed air storage (CAES) generator)
4: power generation device
6, 7: motor (motor)
8: first compressor
8a: intake vent
8b: discharge port
10: inflator
10a: air supply
10b: exhaust vent
12: generator (load generator)
14: first heat exchanger
16: power system
18: second heat exchanger
20a, 20b, 20c, 20d: air piping
21a, 21b: heat medium piping
22a, 22b, 22c, 22d, 22e, 22f, 22g: water supply pipe
24: switch (switching mechanism)
26: cold air outlet
28: water supply
30: cold water outlet
32a, 32b, 32c: pump
34: Cooling Tower
36: classification unit
38: first hot water outlet
40: third heat exchanger
42: fourth heat exchanger
44: second hot water outlet
46: heat recovery mechanism
48: drain
50: motor generator
52: first accumulator tank (first accumulator)
54: second accumulator tank (second accumulator)
56: valve
58: second compressor
58a: intake vent
58b: discharge port
60: flow regulating valve

Claims (8)

In a heat pump using air as a refrigerant,
An electric motor driven by input power,
A first compressor mechanically connected to the electric motor and compressing air;
A first heat exchanger configured to exchange heat with compressed air compressed by the first compressor and water;
A first hot water outlet for taking out the water heated by heat exchange in the first heat exchanger to the outside of the heat pump for use in heating;
An expander driven by compressed air compressed by the first compressor;
A load generation unit mechanically connected to the inflator;
A second heat exchanger configured to exchange heat with water and air inflated by the expander;
Cold water outlet for taking out the heat of the heat exchanger in the second heat exchanger to the outside of the heat pump for cooling
And a heat pump. The method of claim 1,
A first water supply pipe for supplying water, which is drawn out of the first hot water outlet and used for external heating, to the first heat exchanger of the heat pump again;
A second water supply pipe for supplying water extracted from the cold water outlet and used for cooling externally to the second heat exchanger of the heat pump;
Further comprising a heat pump. The heat pump of claim 2, wherein the air expanded in the expander and supplied to the second heat exchanger is -50 ° C to -110 ° C. According to any one of claims 1 to 3, further comprising a first accumulator for storing the compressed air compressed by the first compressor,
The inflator is driven by the compressed air supplied from the first accumulator,
The load generator is a generator,
The generator is driven by the inflator to generate power. 5. The pressure accumulator of claim 4, further comprising: a second accumulator fluidly connected to at least one of the expander and the first accumulator;
A second compressor which compresses air at a higher pressure than compressed air compressed by the first compressor and supplies the compressed air to the second accumulator;
Further comprising a heat pump. The heat pump according to claim 4, further comprising a switching mechanism for switching the supply source of electric power generated by the generator to the electric motor or the demand destination. The heat pump according to any one of claims 1 to 3, wherein the load generating unit is the electric motor. The heat pump of Claim 4 which has the heat recovery mechanism which collect | recovers the heat which arises from the said electric motor and the said load generation part, heats up water by the collect | recovered heat, and takes out as hot water from a 2nd hot water outlet.

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